Doping of CdS nanoparticles

Osipyonok, N.M.; Singaevsky, A. F.; Noskov, Yu. V.; Piryatinskiĭ, Yu. P.; Смертенко, П. С.; Dimitriev, Oleg P.; Pud, A. A.

doi:10.1016/j.mseb.2007.08.020

Cited by 8 publications

(4 citation statements)

References 15 publications

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“…The broad peak at 1•75-1•80 eV (720-700 nm) is associated with a red band related to sulfur vacancies, as a consequence of the doping effect. Undoped CdS films do not show such a broad peak observed on the doped films, being only the bandgap energy peak observed (Osipyonok et al 2008). PL intensity was found to increase with the doping concentration.…”

Section: Photoluminescencementioning

confidence: 72%

Chemical bath deposition of CdS thin films doped with Zn and Cu

et al. 2014

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Zn-and Cu-doped CdS thin films were deposited onto glass substrates by the chemical bath technique. ZnCl 2 and CuCl 2 were incorporated as dopant agents into the conventional CdS chemical bath in order to promote the CdS doping process. The effect of the deposition time and the doping concentration on the physical properties of CdS films were investigated. The morphology, thickness, bandgap energy, crystalline structure and elemental composition of Zn-and Cu-doped CdS films were investigated and compared to the undoped CdS films properties. Both Zn-and Cu-doped CdS films presented a cubic crystalline structure with (1 1 1) as the preferential orientation. Lower values of the bandgap energy were observed for the doped CdS films as compared to those of the undoped CdS films. Zn-doped CdS films presented higher thickness and roughness values than those of Cu-doped CdS films. From the photoluminescence results, it is suggested that the inclusion of Zn and Cu into CdS crystalline structure promotes the formation of acceptor levels above the CdS valence band, resulting in lower bandgap energy values for the doped CdS films.

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Section: Photoluminescencementioning

confidence: 72%

Chemical bath deposition of CdS thin films doped with Zn and Cu

et al. 2014

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“…2b) evidences that they have more perfect crystalline structure as compared to colloidal CdS nanoparticles whose PL band is broader and can possess additional features in the low-energy side of the spectrum. 32 At the same time, the PL band of the tetrapod crystals is asymmetric and broadened as compared with the PL band of CdS single crystals whose FWHM is 20 nm (ref. 27) (Fig.…”

Section: Resultsmentioning

confidence: 99%

Template-assisted synthesis of CdS nanocrystal arrays in chemically inhomogeneous pores using a vapor–solid mechanism

et al. 2015

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“…To overcome this difficulty, appropriate doping is much desired to tailor the energy band structure and tune the transport properties of the CdS nanostructures. Although efficient n-type doping on CdS thin films has been achieved by using In and Cl as n-type dopants via various methods such as thermal evaporation [10,11], spray pyrolysis [12], chemical bath deposition (CBD) [13,14], post-annealing [15] and so on, controlled doping on CdS nanostructures remains a major challenge and is rarely reported [16].…”

Section: Introductionmentioning

confidence: 99%

Chlorine-doped n-type CdS nanowires with enhanced photoconductivity

Jie

Wang

et al. 2010

Nanotechnology

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Cl-doped n-type CdS NWs with single-crystal wurtzite structure and [Formula: see text] growth direction were synthesized by using CdCl(2) as the dopant via a thermal co-evaporation method. By controlling the Cl vapor pressure during the growth, the conductivity of the CdS:Cl NWs can be tuned in a wide range of five orders of magnitude. A nano-photodetector based on the CdS:Cl NWs shows high sensitivity to visible light with excellent stability and reproducibility. Significantly, the photoconductivity of the CdS NWs is greatly enhanced by Cl doping and the responsivity and photoconductive gain of the CdS:Cl NWs have substantially increased compared with the undoped CdS NWs. Further study also demonstrates the polarization-dependent photoconductivity of the CdS:Cl NWs. It is expected that the CdS:Cl NWs with tunable optoelectronic properties will have important applications in high-performance nano-optoelectronic devices.

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Doping of CdS nanoparticles

Cited by 8 publications

References 15 publications

Chemical bath deposition of CdS thin films doped with Zn and Cu

Chemical bath deposition of CdS thin films doped with Zn and Cu

Template-assisted synthesis of CdS nanocrystal arrays in chemically inhomogeneous pores using a vapor–solid mechanism

Chlorine-doped n-type CdS nanowires with enhanced photoconductivity

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